How Many Photons Have Been Into Our Eyes?

A tiny, little photon emitted by a star billions of miles away has to fly through an incredible amount of universe just to land in your eyeball. It could have maybe gone around a black hole, or barely dodged thogh an asteroid or a comet. That's the thing, how many photons carrying tiny little clues about the universe, just go totally unobserved? They fade away like a old rock. they're like little presents that nobody unwraps.